This is a VERY early beta, no help file to speak of. But it does have and installer/uninstaller:
[link out of date]
its a screenshot taking app made to be used with minimal intervention from user.
(ie it auto saves files, etc.)
it's also designed to let you add comments into the screenshots, to be useful for taking visual notes.
it doesnt write to registry or make any system changes, so it's completely safe to test.
i wouldn't be surprised if it doesn't crash sometimes.
ideas, suggestions, bug reprts, all welcomed.